I can draw a single part all day, clean and precise. But when I have to make a bunch of parts move together into something that actually does a job, my mind goes blank. I stare at the blank space where the mechanism should be, and I have no idea how the pieces are supposed to come alive.
More people experience this than they realize.
You can draft a part, but designing a whole working mechanism overwhelms you.
If this sounds familiar, the Library can help you find the bigger picture.